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Safety notices when using according to FM
If you use the device under FM conditions you must also keep to the following safety
notices in addition to the general safety notices for protection against explosion:
EXPLOSION HAZARD
The equipment is intended to be installed within an enclosure/control cabinet. The
inner service temperature of the enclosure/control cabinet corresponds to the ambient
temperature of the module. Use cables with a maximum permitted operating
temperature of at least 20 °C higher than the maximum ambient temperature.
Wall mounting is only permitted if the requirements for the housing, the installation
regulations, the clearance and separating regulations for the control cabinets or
housings are adhered to. The control cabinet cover or housing must be secured so that
it can only be opened with a tool. An appropriate strain-relief assembly for the cable
must be used.
Wall mounting outside of the control cabinet or housing does not fulfill the
requirements of the FM approval.
Note
You must not install the device on a wall in hazardous areas.
SCALANCE W1788-x / W1748-1
Operating Instructions, 03/2022, C79000-G8976-C484-05
WARNING
WARNING
WARNING
Installation and removal
5.1 Safety notices for installation
43
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